Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2008-02-15
Phys.Rev.Lett.100:221801,2008
Physics
High Energy Physics
High Energy Physics - Experiment
5 pages, also available through http://www.lns.cornell.edu/public/CLNS/2007/. Incorporated referees' comments
Scientific paper
10.1103/PhysRevLett.100.221801
We exploit the quantum coherence between pair-produced D0 and D0bar in psi(3770) decays to study charm mixing, which is characterized by the parameters x and y, and to make a first determination of the relative strong phase \delta between D0 -> K+pi- and D0bar -> K+pi-. Using 281 pb^-1 of e^+e^- collision data collected with the CLEO-c detector at E_cm = 3.77 GeV, as well as branching fraction input and time-integrated measurements of R_M = (x^2+y^2)/2 and R_{WS} = Gamma(D0 -> K+pi-)/Gamma(D0bar -> K+pi-) from other experiments, we find \cos\delta = 1.03 +0.31-0.17 +- 0.06, where the uncertainties are statistical and systematic, respectively. By further including other mixing parameter measurements, we obtain an alternate measurement of \cos\delta = 1.10 +- 0.35 +- 0.07, as well as x\sin\delta = (4.4 +2.7-1.8 +- 2.9) x 10^-3 and \delta = 22 +11-12 +9-11 degrees.
Rosner Jonathan L.
The CLEO Collaboration
No associations
LandOfFree
Determination of the Strong Phase in D0 -> K+pi- Using Quantum-Correlated Measurements does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Determination of the Strong Phase in D0 -> K+pi- Using Quantum-Correlated Measurements, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Determination of the Strong Phase in D0 -> K+pi- Using Quantum-Correlated Measurements will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-38905